но сначала я должна успешно закончи

но сначала я должна успешно закончить этот год в учебе. это немного сложно.

Результаты (английский) 1:

But first I must successfully finish this year in school. It's a little difficult.

Результаты (английский) 2:

but first I must have successfully completed this year in school. it's a bit difficult.

Результаты (английский) 3:

But first I must have successfully completed this year in school. This is a little difficult.